Buckle



FIG. 1 is a front perspective view of a buckle showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof, the left side being a mirror image thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The shading lines shown on the surface of the buckle are used to specify a three dimensional shape of the claimed portion of the buckle. 

CLAIM The ornamental design for a buckle, as shown and described. 